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#1 · 常错题

#2 · 常错题

将循环小数化为分数:整数、有限小数、循环小数都可以化成分数,整数和有限小数化成分数容易,循环小数如何化成分数呢?请看下面的例子. 将循环小数$0.288\ldots $化成分数:将$0.288\ldots $分别乘$10$和$100$,得$2.88\ldots $和$28.88\ldots $,两个得数相减得$26(两个得数小数部分相同)$,而相减所得的$26$应该是$0.288\ldots $的$\left(100-10\right)

#3 · 常错题

今年市委市政府积极推进创建“全国文明城市”工作,市创城办公室为了调查初中学生对“社会主义核心价值观”内容的了解程度\((\)程度分为:“\(A-\)十分熟悉”,“\(B-\)了解较多”,“\(C-\)了解较少”,“\(D-\)不知道”\()\),对我市一所中学的学生进行了随机抽样调查,根据调查结果绘制了两幅不完整的统计图如图,根据信息解答下列问题: \((1)\)本次抽样调查了多少名学生; \((2)\)补全条形统计图和扇形统计图; \

#4 · 常错题

#5 · 常错题

一批水果的标准质量是$30$千克,超出标准质量记为正,低于标准质量记为负,现记录如下:$+8$,$-9$,$-5$,$+7$,$-8$,$-6$,$+7$,$+10$. $(1)$这批水果总共有多少千克? $(2)$第一天按每千克价格$5$元卖出了这批水果的一半,第二天为了吸引顾客把第一天卖水果的价格降价$20\%$后作为新的价格,卖完了剩下的水果,请计算一下这批水果一共卖了多少钱?

#6 · 常错题

分类讨论思想是数学的重要思想,在学习有理数的过程中,也深有感受$!$ $(1)$当$ab \lt 0$时,若$b \gt 0$,$|a| \lt |b|$,则$a+b \_\_\_\_\_\_0$; $(2)$当$abc \lt 0$时,若$ab \gt 0$,则$c \_\_\_\_\_\_0$; $(3)$已知$a$,$b$,$c$是非零有理数,则$\frac{a}{|a|}+\frac{b}{|b|}+\frac{c}{|c|}=

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八年级·英语·选择题表语从句

India has been an independent country _______1974.( )

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八年级·英语·填空题主谓一致

Do you ______(同意,赞同) with her advice?

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八年级·英语·填空题主谓一致

用方框中所给单词或词组的适当形式填空,每词限用一次. break both crowded umbrella feel like (1)______Tom and Jerry are good at playing football. (2)The store sells all kinds of ______,from small ones to large ones. (3)I ______ we can win the match

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八年级·英语·选择题状语从句

_____ have you been swimming?For five years.( )

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八年级·英语·句型转换语法

Linda . (对划线部分提问) ______ wrong ______ Linda ?

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八年级·英语·填空题阅读判断题

Raisins are grapes! Raisins are nothing but dried grapes.Do you know how to make raisins at home?Here is an easy way to make raisins at home.You can do it with your parents on a summer afternoon. What you\’ll need ※some

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八年级·英语·选择题配对阅读

-Can you ______ what time the school food festival will start? -Let me see.Oh,at 8:00 am tomorrow.( )

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八年级·英语·填空题逸闻趣事类阅读

anger buy certain draw farm hang much picture print quiet run sudden Once upon a time there was a boy who liked drawing but he was too poor (1)______ a brush.One night he said to himself,"If only I had a brush,I could dr

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八年级·英语·填空题逸闻趣事类阅读

One day,a young man went to an interview for a job as a Morse code operator(摩斯电码报务员).After knowing the address of the office on the newspaper,he went there.When he arrived,he walked into a large,bus y office filled with

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八年级·英语·选择题主谓一致

At present,the number of the students in the buddy club _______ 65.A number of them_______ in other clubs as well.( )

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八年级·英语·完成句子主语从句

贫困地区的一些孩子上不起学很令人伤感。 It is sad______to school.

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八年级·英语·选择题配对阅读

—Jenny,can you change a song?You ______ listening to it for half an hour. —No problem,Mom.( )

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八年级·英语·选择题配对阅读

-Can you what time the meeting will start? -Let me see.In an hour.( )

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八年级·英语·选择题介词+动词短语

The scarf(围巾) is_____silk and feels soft and comfortable.( )

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八年级·英语·选择题介词+分词短语

He is different_____ his brother,but he is similar _____his father.( )

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八年级·英语·选择题常用介词的辨析

It was really helpful him to take the cat to the animal centre a rainy night.( )

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八年级·英语·选择题其他介词

-What did you have ________ breakfast this morning? -I had some bread and a glass _______ milk.( )

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八年级·英语·选择题方位介词

-I left my keys in the room yesterday.I had to get in ____ the window. -It's dangerous to do that.( )

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八年级·英语·选择题时间介词

It's very nice to visit New York ______ autumn.( )

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八年级·英语·选择题动词词义辨析

Our monitor always helps other students their lessons and he never says any bad words others.( )

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